(0 20 18)(1 21 6)(2 19 4)(3 17 14 8 5)(7 16 15 12 9)(10 13 11)
ALLOWS (11/8)-SEQUENCE
1: (0 3 17)

(0 14 8 5 3 20 18)(1 21 6)(2 19 4)(7 16 15 12 9)(10 13 11)(17)
2: (1 21 6)

(0 14 8 5 3 20 18)(1)(2 19 4)(6)(7 16 15 12 9)(10 13 11)(17)(21)
3: (2 19 4)

(0 14 8 5 3 20 18)(1)(2)(4)(6)(7 16 15 12 9)(10 13 11)(17)(19)(21)
4: (3 20 14)

(0 14 18)(1)(2)(3 8 5)(4)(6)(7 16 15 12 9)(10 13 11)(17)(19)(20)(21)